春季订购豆类清单 [英] Spring ordered list of beans

问题描述

我有几个实现相同接口的bean. 每个bean都用

I have several beans that implement the same interface. Each bean is annotated with

@Component 
@Order(SORT_ORDER).
public class MyClass implements BeanInterface{
    ...
}

在某一时刻，我自动装配了一个组件列表，并希望得到一个经过排序的bean列表. Bean列表未按照我使用批注设置的顺序进行排序.

At one point I autowire a list of components and I expect a sorted list of beans. The list of beans is not sorted according the orders I have set with the annotation.

我尝试实现Ordered接口，并且发生了相同的行为.

I tried implementing the interface Ordered and the same behaviour occurs.

@Component
public class Factory{


    @Autowired
    private List<BeanInterface> list; // <- I expect a sorted list here
    ...
}

我做错什么了吗?

推荐答案

我找到了解决该问题的方法，正如您所说，尽管这是一个不错的功能，但它并不意味着要这样做.

I found a solution to the issue, as you say, this annotation is not meant for that despite it would be a nice feature.

要使其工作，只需在包含排序列表的Bean中添加以下代码即可.

To make it work this way its just necessary to add the following code in the bean containing the sorted list.

@PostConstruct
public void init() {
    Collections.sort(list,AnnotationAwareOrderComparator.INSTANCE);
}

希望有帮助.

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